R. Tyler Croy
added a comment - 2016-02-07 15:21 Ah wonderful. Then it sounds like what might have happened is that you got caught by my mistake in adding a new mirror. See this thread for details.
Glad you're back in business!

R. Tyler Croy
added a comment - 2016-02-07 15:07 I've seen this issue before with older versions of Debian, which at one point didn't handle HTTP redirects well .
That was eons ago, so I'm surprised to see you experiencing this issue. Will you share your apt sources file which lists the Jenkins apt repo?